﻿#region Copyright
// 
// DotNetNuke® - http://www.dotnetnuke.com
// Copyright (c) 2002-2012
// by DotNetNuke Corporation
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
// documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and 
// to permit persons to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or substantial portions 
// of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
// CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
// DEALINGS IN THE SOFTWARE.
#endregion
#region Usings

using System;
using System.IO;
using System.Web.UI;
using DotNetNuke.Services.Exceptions;
using DotNetNuke.UI.Modules;

#endregion

namespace DotNetNuke.Web.Razor
{
    public class RazorModuleBase : ModuleUserControlBase
    {
        protected virtual string RazorScriptFile
        {
            get
            {
                var scriptFolder = AppRelativeTemplateSourceDirectory;
                var fileRoot = Path.GetFileNameWithoutExtension(AppRelativeVirtualPath);
                var scriptFile = scriptFolder + "_" + fileRoot + ".cshtml";

                if (! (File.Exists(Server.MapPath(scriptFile))))
                {
                    //Try VB (vbhtml)
                    scriptFile = scriptFolder + "_" + fileRoot + ".vbhtml";
                }

                if (! (File.Exists(Server.MapPath(scriptFile))))
                {
                    //Return ""
                    scriptFile = "";
                }
                return scriptFile;
            }
        }

        protected override void OnPreRender(EventArgs e)
        {
            base.OnPreRender(e);
            try
            {
                if (! (string.IsNullOrEmpty(RazorScriptFile)))
                {
                    var razorEngine = new RazorEngine(RazorScriptFile, ModuleContext, LocalResourceFile);
                    var writer = new StringWriter();
                    razorEngine.Render(writer);

                    Controls.Add(new LiteralControl(Server.HtmlDecode(writer.ToString())));
                }
            }
            catch (Exception ex)
            {
                Exceptions.ProcessModuleLoadException(this, ex);
            }
        }
    }
}